Very probably, I have a grid panel in a card layout, and if I set the viewConfig with autoScroll true, then I get 2 scrollbars, one of the "gridview" and one of the "x-panel". Wanted and still want only for "gridview" but haven't found yet how to disable panel's one. So I had to set autoscroll to false in viewConfig in order to have only one scroll bar, which is for panel. And more than this, using rowexpander sometimes the scroller is buggy too. I'm not 100% sure, that these are bugs, but just complaining on what I get.

That did not work for me. When my grid is first initialized with the test data, I now get two horizontal scrollbars, but when I reload with new data, all scrollbars disappear.

I am going to see if I can hack the grid by injecting the right overflow tags into the grid's CSS. Also, maybe if I wrap the grid in another panel and make that scrollable. Wish me luck. I will report back.

Edit: I was just looking at the DOM and the CSS and it shows my grid-panel to be 2042px tall which explains the lack of vertical scrollbar. The width is showing at 291px which appears correct. overflow is set to hidden.

Thanks for sharing. There should be a release 4.0.8 including this fix (and all ohters) for users stuck in this version. Even after several days fixing my app I can't have something to work with 4.1b1
Many application will be never updated in 4.1, there is too lot of work.